Multiple Choice
How does the shape of a protein relate to its function?
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4. Biomolecules
Proteins
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How does the primary structure of a protein affect its other structural levels?
A
It directly determines the protein's tertiary structure without influencing secondary structure.
B
It only affects the protein's secondary structure, not the tertiary or quaternary structures.
C
It has no impact on the protein's quaternary structure.
D
It determines the sequence of amino acids, which influences the protein's folding and function.
Verified step by step guidance1
Understand that the primary structure of a protein is the linear sequence of amino acids linked by peptide bonds.
Recognize that the sequence of amino acids in the primary structure determines how the protein will fold into its secondary structure, which includes alpha helices and beta sheets.
Acknowledge that the secondary structure elements further fold into a three-dimensional shape, known as the tertiary structure, influenced by interactions such as hydrogen bonds, ionic bonds, and hydrophobic interactions.
Realize that the tertiary structure can combine with other polypeptide chains to form a quaternary structure, if applicable, which is the arrangement of multiple folded protein molecules.
Conclude that the primary structure is crucial as it sets the foundation for all higher levels of protein structure, ultimately affecting the protein's function and activity.
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